A 15 kg wooden box is being pushed across a wooden floor with a constant force of 105 N. The coefficient of kinetic friction between the box and the floor is 0.2.
1.How much normal force is on the box?
2.How much friction is on the box?
3.What is the Net Force that the box experiences?
4.How much acceleration does the box experience?
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When the medium is dense, the molecules in the medium are closely packed which means that the sound travels faster. Therefore, the speed of sound increases as the density of the medium increases.
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